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Application method of a temporary protective ultraviolet light curing adhesive

A temporary protection and application method technology, applied in the direction of adhesives, bonding methods, adhesive types, etc., can solve problems such as rubber stoppers that are easy to fall off, and achieve the effects of improving product quality, low hardness, and reducing costs

Active Publication Date: 2020-05-26
YANTAI SEAYU NEW MATERIALS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an application method of a temporarily protected UV-curable adhesive. The present invention solves the problem that the rubber stopper is easy to fall off during the temporary protection of the CNC process

Method used

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  • Application method of a temporary protective ultraviolet light curing adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Put the UV-curable adhesive into the opaque needle tube, install the needle, put the needle tube with the needle into the automatic dispensing machine, set the dispensing program according to the dispensing path, control the air pressure at 60psi, and glue the glue during CNC processing The glue is injected into the corresponding screw hole of the metal shell, and the UV-curable adhesive is completely cured by natural light irradiation or artificial ultraviolet light irradiation; after the CNC treatment, the second ultraviolet light irradiation is performed to peel off the rubber plug in the screw hole;

[0049] Described ultraviolet curing adhesive is carried out according to the following steps:

[0050] 40 parts of self-made bifunctional urethane acrylate prepolymer, 10 parts of multifunctional urethane acrylate prepolymer, 8 parts of polyester acrylate prepolymer, 12 parts of reactive amine complexing agent, acrylate reactive diluent 20 parts, 2 parts of leveling we...

Embodiment 2

[0057] Put the UV-curable adhesive into the opaque needle tube, install the needle, put the needle tube with the needle into the automatic dispensing machine, set the dispensing program according to the dispensing path, control the air pressure at 60psi, and glue the glue during CNC processing The glue is injected into the corresponding screw hole of the metal shell, and the UV-curable adhesive is completely cured by natural light irradiation or artificial ultraviolet light irradiation; after the CNC treatment, the second ultraviolet light irradiation is performed to peel off the rubber plug in the screw hole;

[0058] Described ultraviolet curing adhesive is carried out according to the following steps:

[0059] The ultraviolet curing glue is carried out according to the following steps:

[0060] 40 parts of self-made bifunctional urethane acrylate prepolymer, 10 parts of multifunctional urethane acrylate prepolymer, 8 parts of polyester acrylate prepolymer, 12 parts of react...

Embodiment 3

[0067] Put the UV-curable adhesive into the opaque needle tube, install the needle, put the needle tube with the needle into the automatic dispensing machine, set the dispensing program according to the dispensing path, control the air pressure at 60psi, and glue the glue during CNC processing The glue is injected into the corresponding screw hole of the metal shell, and the UV-curable adhesive is completely cured by natural light irradiation or artificial ultraviolet light irradiation; after the CNC treatment, the second ultraviolet light irradiation is performed to peel off the rubber plug in the screw hole;

[0068] Described ultraviolet curing adhesive is carried out according to the following steps:

[0069] 20-60 parts of self-made bifunctional urethane acrylate prepolymer, 5-15 parts of multi-functional urethane acrylate prepolymer, 5-15 parts of polyester acrylate prepolymer, 5-20 parts of reactive amine complexing agent 10-30 parts of acrylate reactive diluent, 0.5-5 ...

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Abstract

The invention relates to an application method of an ultraviolet curing adhesive for temporary protection. The adhesive is put in a light-proof needle tube, a needle is mounted, then, the needle tube is put in an automatic dispensing machine, a dispensing procedure is set according to a dispensing route, the air pressure is controlled, the adhesive is injected into screw holes of a metal shell and completely cured under ultraviolet irradiation, the ultrasonic irradiation energy is 600-1,200 mJ / cm<2>, and post-treatment of a CNC (computer numerical control) technology is implemented; ultraviolet irradiation is performed under the ultrasonic irradiation energy of 3,000-6,0 00 mJ / cm<2>after treatment with the CNC technology, and cured adhesive plugs in the screw holes are stripped by hand or ultrasonic waves. The application method is simple to operate, stripping is easy, and residues and falling can be avoided.

Description

technical field [0001] The invention relates to an application method of a temporarily protected ultraviolet light curing adhesive. Background technique [0002] With the continuous expansion of the application field of ultraviolet light technology, ultraviolet light curing adhesives play an important role in electronic products such as mobile phones, televisions, and computers. In this era when user experience is highly valued, more and more manufacturers of mobile phones, notebooks, and wearable devices have begun to focus on shell materials. From the perspective of the mobile phone field, the shell material is gradually transitioning from engineering plastics to metal. When it comes to all metal, CNC must be mentioned. At present, the all-metal casings of 3C products are basically processed by CNC machine tools (Computer numerical control machine tools, CNC). Because of its advantages of high efficiency, high precision and stable processing quality, CNC has become an e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J175/14C09J167/06C09J11/04C09J5/00C08G18/67C08G18/48C01G23/07
CPCC01G23/07C08G18/4825C08G18/672C08K2003/2241C08K2201/011C08L2205/025C08L2205/03C09J5/00C09J11/04C09J175/14C09J2301/408C09J2301/416C09J2301/502C08L75/14C08L67/06C08K3/22C08K3/36C08G18/48
Inventor 李不悔李峰贺国新张利文
Owner YANTAI SEAYU NEW MATERIALS CORP LTD
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